1. aDepartment of Pediatrics II, Pediatric Gastroenterology, Hepatology and Liver Transplantation, University Children’s Hospital Essen, University of Duisburg-Essen, Essen, Germany
2. bDepartment of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
3. cMedical Genetics Mainz, Mainz, Germany
4. dSection of Social Pediatric Center and Neuropediatrics, University Children’s Hospital Ulm, University of Ulm, Ulm, Germany
5. eInstitute of Pathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany